TEL134020WL, 20A 3 Pole 480V E-frame Molded Case Circuit Breaker, Current Limiting Circuit Breaker by General Electric. This product line is considered now Obsolete. Replacement circuit breakers. Series rated 480V at 65k, 240V at 100k. For lugs use TCAL12A. These breakers are normally specified by electrical engineers in water treatment plants, medical facilities as such. Also TEL134020.